Setback retaining wall and concrete block and offset pin therefo

Details Setback retaining wall and concrete block and offset pin therefo Setback retaining wall and concrete block and offset pin therefo

1991-09-30

1993-10-12

Friedman, Carl D.

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Impact driven fastener, e.g., nail, spike, tack, etc.

Including integral locking means

521694, 52562, 52585, 403292, 405284, E02D 2902, F16B 1506

Patent

active

052520170

ABSTRACT:
A mortarless concrete block retaining wall is formed from special blocks arranged in set-back tiers and interlocked by special offset pins. Each block is trapezoidal in plan view with a pair of vertical holes behind a relatively wide front face. The holes in adjacent tiers are laterally offset. The pins have opposite end sections which are laterally offset from one another and fit respectively in the offset holes to interlock adjacent tiers in set-back relation. The special pins are rotatably adjustable to interlock the tiers in a straight configuration or in varying degrees of convex and concave curved configurations.

REFERENCES:
patent: 798706 (1905-09-01), Rockwell
patent: 3195266 (1965-07-01), Onanian
patent: 3461631 (1969-08-01), Brugnola
patent: 4825619 (1989-05-01), Frosberg
patent: 4920712 (1990-05-01), Dean, Jr.
patent: 5035559 (1991-07-01), Nilsen
patent: 5044834 (1991-09-01), Janopaul, Jr.

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